Three blocks are in contact with one another on a frictionless, horizontal surface as shown in the figure below. A horizontal force F is applied to m1. Take m1 = 2.00 kg, m2 = 7.90 kg, m3 = 4.80 kg, and F = 20.0 N. m2 (d) Find the magnitudes of the contact forces between the blocks. between block 1 and 2 N between block 2 and 3 N (e) You are working on a construction project. A coworker is nailing up plasterboard on one side of a light partition, and you are on the opposite side, providing "backing" by leaning against the wall with your back pushing on it. Every hammer blow makes your back sting. The supervisor helps you put a heavy block of wood between the wall and your back. Explain how this change works to make your job more comfortable.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 49P: In Example 4.5, we pushed on two blocks on a table. Suppose three blocks are in contact with one...
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Three blocks are in contact with one another on a frictionless, horizontal surface as shown in the figure below. A horizontal force F is applied to m1. Take m1 = 2.00 kg, m2 = 7.90 kg, m3 = 4.80 kg, and F = 20.0
N.
m2
(d) Find the magnitudes of the contact forces between the blocks.
between block 1 and 2
N
between block 2 and 3
N
(e) You are working on a construction project. A coworker is nailing up plasterboard on one side of a light partition, and you are on the opposite side, providing "backing" by leaning against the wall with
your back pushing on it. Every hammer blow makes your back sting. The supervisor helps you put a heavy block of wood between the wall and your back. Explain how this change works to make your job
more comfortable.
Transcribed Image Text:Three blocks are in contact with one another on a frictionless, horizontal surface as shown in the figure below. A horizontal force F is applied to m1. Take m1 = 2.00 kg, m2 = 7.90 kg, m3 = 4.80 kg, and F = 20.0 N. m2 (d) Find the magnitudes of the contact forces between the blocks. between block 1 and 2 N between block 2 and 3 N (e) You are working on a construction project. A coworker is nailing up plasterboard on one side of a light partition, and you are on the opposite side, providing "backing" by leaning against the wall with your back pushing on it. Every hammer blow makes your back sting. The supervisor helps you put a heavy block of wood between the wall and your back. Explain how this change works to make your job more comfortable.
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